What is a Workman Word™?

Question

_{In the spirit of the What is a Word™/Phrase™ series started by JLee, a special brand of Phrase™ and Word™ puzzles.}

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If a word conforms to a special rule, I call it a Workman Word™.
Use the examples below to find the rule.

Workman Words™	Not Workman Words™
LONE	WOLF
FUEL	TANK
PEE	URINE
FUNNY	JOKE
CONVEYING	FEELINGS
THRASH	BIN
ENJOY	LIFE
INVOKE	SPELL
STRAW	LAST
HARD	CORE

The CSV version:

Workman Words™,Not Workman Words™
LONE,WOLF
FUEL,TANK
PEE,URINE
FUNNY,JOKE
CONVEYING,FEELINGS
THRASH,BIN
ENJOY,LIFE
INVOKE,SPELL
STRAW,LAST
HARD,CORE

These are not the only examples of Workman Words™; many more exist.

What is the special rule these words conform to?

Answer 1

I believe...

They're words that can be typed on keys touching one another in a Workman keyboard layout (Pic from Wikipedia):



In contrast, all the non-Workman words don't form an unbroken line on it.